Morningtide Draft Booster has variants:
Explore this pack in Sealed.

Sheets

Sheet common (color balanced)

At rate 1/60 (1.67%)

Sheet uncommon

At rate 1/40 (2.5%)

Sheet rare

At rate 1/50 (2.0%)

Sheet foil

At rate 1/100 (1.0%)
At rate 1/160 (0.63%)
At rate 3/1000 (0.3%)